Upgrading the performance of district heating networks
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Upgrading the performance
of district heating networks
The Upgrade DH project and its framework
Upgrade DH final Conference
„Towards Efficient District Heating and Cooling in Europe“
15 September 2021
Dominik Rutz, Rita Mergner
This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 785014. The sole responsibility
for the content of this report lies with the authors. It does not necessarily reflect the opinion of the European Union nor of the European Climate, Infrastructure and
Environment Executive Agency (CINEA). Neither the CINEA nor the European Commission are responsible for any use that may be made of the information contained
therein.
Content
1. The challenge
2. The Upgrade DH project
3. People
4. Personal remarks
15-09-2021
Heating needs much Energy!
https://ec.europa.eu/eurostat/web/products-eurostat-news/-/DDN-20190620-1
Data: 2017; Graph: 2019
15-09-2021
Heating and cooling accounts for
around 50%
of the final energy consumption
in Europe
15-09-2021
only 19.5% renewable
energies in heating & cooling!
The heating sector was neglected for too long!
https://www.euroheat.org/news/eu-statistics/
15-09-2021
The Challenge
• Homeowners are often overchallenged how to
implement 100% renewables for heating & cooling
• This applies especially to existing buildings
→ modern / renewable / efficient District Heating
systems have a key role in the energy transition of
the heating sector!
→ existing DH must be upgraded
→ new DH must be built
15-09-2021
District heating: each system is individual! 15-09-2021
Content
1. The challenge
2. The Upgrade DH project
3. People
4. Personal remarks
15-09-2021
Objective of Upgrade DH
Improve the performance of district
heating networks in Europe
by supporting selected demonstration cases
for upgrading, which can be replicated in
Europe
15-09-2021
Heat generation
Pictures: D. Rutz
15-09-2021Heat distribution
Pictures: D. Rutz
15-09-2021Heat use 15-09-2021
Upgrade DH project structure 15-09-2021
Upgrade DH Consortium
Michael Kübler, Kuebler@solites.de
www.solites.de
Evaldas Čepulis, evaldas@lsta.lt
15-09-2021Upgrade DH case studies 15-09-2021
Results (selected ones)
• Many upgrading options identified, promoted and
some already implemented!
• 4 study tours and site visits, 10 webinars, many
working group meetings
• Exchange of knowledge and experiences among
experts
• National District Heating & Cooling Action Plans for
all target countries
• Campaign: Become a #DHCitizen!
15-09-2021Identified upgrading measures A)
Heat use
• Smart substations analytics
• Connection of potential new low-enthalpy customers
• Replacement of local gas boilers for hot water with DH hot water units
• Expansion strategies
• Replacement of local gas boilers with DH
• Sanitary water delivery and/or cooling services
• Energy efficiency measures at residential buildings
Heat distribution
• Heat loss reduction by better supply and return temperature management with temperature optimization
• Increase the number of pre-insulated pipes in the system
• Lowering the return temperature
• Lower the electrical demand by optimising the pump operation
• Optimise grid maintenance
• Hydraulic optimisation of the main DH line
• Introduction of SlimNet (twin pipes) instead of traditional single pipes
• Network optimization in order to reduce operational costs
• Replacement of the existing main circulation pump with new electronic frequency regulated circulation pumps for each
DH system separately
• Replacement of existing hot water pipeline (DN600) with a pipeline of a larger diameter, solving hydraulic problems
15-09-2021Identified upgrading measures B)
Heat production
• Further development of the energy production optimization
• Installing of heat pumps
• Heat accumulator tank for load levelling
• Optimising the heat plant operation
• Calculating the economic feasibility of a P2H unit
• Convert CHP plant from coal to biomass
• Setting up a new biomass plan
• Integration of solar energy (thermal collectors and PV) in the heat production mix
• Solar thermal implementation in a small system which can operate during summer months and replace the main
heating source
• Installation of thermal heat storage to increase flexibility
• Heat recovery from the flue gas
• Waste heat utilization from the condensate for the technological purposes in the system
• Operation optimization of two coal cogeneration units
• Installation of a waste incineration facility
Management
• Merging the business with the neighbouring utility
• Setting up an energy demand prognosis 2018 -2030
• Plan for increased share of renewables
15-09-2021Development of DH!
15-09-2021
Source: Euroheat & PowerUpgrade DH Handbook
The handbook is available in the following
languages:
• English
• Bosnian
• Croatian
• Danish
• Italian
• Lithuanian
• Polish
• As hardcopy/ pdf
• See www.upgrade-dh.eu
15-09-2021Content
1. The challenge
2. The Upgrade DH project
3. People
4. Personal remarks
15-09-2021Germany 15-09-2021
Lithuania 15-09-2021
Denmark 15-09-2021
Bosnia & Herzegovina 15-09-2021
COVID-19 Homeoffice 15-09-2021
Upgrading DH needs…
1. Technical solutions & good planning (tools)
People:
2. Skilled planners and workers
3. Politicians at national and EU levels that enact
suitable & fast legislation
4. Politicians at the local level that implement projects at
local level
15-09-2021I urgently call all project partners and
conference participants to:
• Further use the personally gained knowledge
for continuously informing policy makers at
any levels
• Get involved in local politics to stimulate
changes
… according to your possibilities
15-09-2021Content
1. The challenge
2. The Upgrade DH project
3. People
4. Personal remarks
15-09-2021Personal remarks
• DH networks provide great services for
consumers
• DH networks must be fully carbon neutral
to meet climate targets – much work has
to be done to be 100% renewable!
• Large energy efficiency gains are
possible for many DH systems
• Hot debate at EU level on forest based
biomass for energy purposes
15-09-2021BIG THANKS to:
• All project partners for the great work and
friendship
• Stavros Stamatoukos, our project officer at
CINEA for the support
• Aksana Krasatsenka for the organisation of
this event
• My colleagues Rita Mergner,
Cosette Khawaja, Christine Meyer-Häge
and Rainer Janssen for all contributions
15-09-2021Thank you for your attention !!
Dominik Rutz, Rita Mergner
Dominik.rutz@wip-munich.de
www.upgrade-dh.eu
This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 785014. The sole responsibility
for the content of this report lies with the authors. It does not necessarily reflect the opinion of the European Union nor of the European Climate, Infrastructure and
Environment Executive Agency (CINEA). Neither the CINEA nor the European Commission are responsible for any use that may be made of the information contained
therein.You can also read
